Hi YossiA

Try

private void FindNodeInHierarchy(TreeNodeCollection nodes, string strSearchValue)
        {           
            for (int iCount = 0; iCount < nodes.Count; iCount++)
            {
                if (nodes[iCount].Text.ToUpper().Contains(strSearchValue.ToUpper()))
                {                                            
                    trvSourceCode.SelectedNode = nodes[iCount];
                    trvSourceCode.Select();
                    m_bNodeFound = true;
                    return;
                }
                else
                {
                    m_bNodeFound = false;
                }
                //expand the nodes
                nodes[iCount].Expand();
                //Recursively search the text in the child nodes
                FindNodeInHierarchy(nodes[iCount].Nodes, strSearchValue);
                if (m_bNodeFound)
                {
                    return;
                }
                //collapses the nodes
                nodes[iCount].Collapse();
                //return;
            }           
        }
 

Hi Yossi

each node has a level (node.level) which tells you how far down the tree it is, so what you need to do is when you have found the leaf node, is to build the new tree starting with the first ancestor an then add the descendants

for example node.parent.text will return DEV if the Leaf is Yoni

node.parent.parent.text will return Company.

Hope this helps

Ewan